6
Insects were the first animals to evolve ...
Wings
moist environments or water
What are the most diverse group of animals on Earth
Insects
Amphibians
The early molecular catalyst that may have assisted in building the 1st proteins
RNA
Photosynthetic bacteria invades pre-eukaryotic cells resulting in ...
Chloroplasts
Short chains of amino acids gathered into tiny droplets
Micropheres
2/3
Chloroplasts and Mitochondria evolved through ...
Endosymbiosis
Arthropods have ... and ...
Hard outer skeleton and jointed appendages
Most successful living vertebrates
fishes
What used the ability to fly to ...
patrol entire surface of the Earth
search for food mates or nesting sites
transport objects long distances
Insects
Amphibians were able to successfully colonize land because (3 reasons)
They can absorb oxygen from air
They have 4 sturdy limbs with lungs
Oxygen rich blood flows rapidly to the muscles and organs
The ability to fly led to partnership between ... and ...
insects and flowering plants
Eukaryotes first appeared ...
1.5 million years ago
Chemicals give energy to ...
Archaebacteria
The first animals to invade the land were ...
arthropods
Earth's estimated age
4.6 billion years old
The first organisms to populate land were ...
plants and fungi
jawless fish
3 examples of arthropods
lobsters
insects
spiders
Major problem for organisms moving onto land
body structures that constantly lose water
Biologists separate bacteria into 2 groups based on these 3 things
composition of cell walls
structure of proteins
composition of cell membranes
Reptiles have this type of skin
Water tight
There is no ... in pre-eukaryotic cells
DNA